Attaching plug and receptacle.



UNITED srirns PATENT OFFICE.

.riiixii c. iii; Rniueiiqor stnnxccriiir, lNew'ironic Assis-Nonno.:essere@ iatsonne coinnxr, .i CORPORATION or New YORK.

TTACHiNG, PLUG AND RECEPTACLE..

Specification of Letters Patent;

Yntented May 7, 1907.

Application filed October 31, 1904. Serial No. 230,683.

l .To (di whom ir'- may concer-1L:

Beit known that L FRANK C. DE Returns, n citizen of the lnited States,residing nt Schenectady, iii the county of Sclienwindj:

ing device hai-ving corresponding contacts in engagement with the branchconductors and adapted to lie moved into and out of engagement by hand.jectioiinhle for the reason that the circuit-is Vinade and broken li'vthe engage-nient or disdoctor, and n receptacle. having a corrcspond-'ing pair of terminal contacts, e 'pair ol hindengagement of contacts,and because of the lack of e snep-action the)v soon become pitted anddestroyed hy the nrcii'ig act-ion between them.

The Object of my invention is to provide a sir'nple and collina-ctatt-itching .device for branh circuits which may he connected anddisconnected withoutarcing between contacts, fand a further Objectis toprovide a. device of this character whichY cannot be disconnected whilecurrent is pessing in the branch conductor.

In'cfirljiiig out my invention, l providea.

plug having a pair of contacts connected in the. usual way to the endsot' vthe branch coning posts for engaging the iiiain conductor, aSimp-switch for electrically connecting one or liotli of the contat-tswith the iespecti ve hind ing post or posts, niid i liolt or 'lockingdevicendapted to eiign c ai Contact on the plug and controlled liv thesnap-switch.

The iniention will be more readily under-I stood by reference to thefollowing detaileddescription zind the :icconipzin-ving drawing formingn part of this specilicetioii in which,

Figure 1 is mi end elevation of an attaching device embodying one forniof niv invention; Fig. 2 is ai top plan Oi the recept-ticle with theface plate ieiiioved; and Fig. 3 is a longitudinal section of thereceptacle on line. 3 3 of Fig.

These prior devices are Ob- The plug consists of an oblong knolil hnv`ing n central envitj: in which are arranged binding posts2 iorst-wuringthe ends of the h rniirli conductors which are led through the top ol'the knol), sind projecting from the lower end oi the knol: are. twocontacts 3 respectively connected at their upper" ends witli the bindingposts and having halb g sho-pcd extremities 4 split longitndinellytorender theni slightljv yieldalile.

.to receive a locking bolt 23.

The receptacle is designed to he secured in a recess in a iva-ll andcoiisis ts of a. hase 5 lieving end ears 6 .for securing it in place ande.

fa-ce plate 7 adel ted to lie'secured'tliereto and provided wit 'hushedapcrturesS for the passa-ge therethrough otI the plug contacts 3 and anunhiislied aperture 9 forthe. passa-ge of the switch-actuating means. i

The hase 5 is of insulating materiel andin the. forni of e.rect-iingular slab. At the leftliand end of the hase two cylindricalcavities 10 are formed in which tubular contacts 11 12 are secured by'screws 13 extending-'vertically through metallic connecting strips 14and 15, and walls of the base' and screwthreaded into the ends of theconta-ets. The connecting strip '14 extends through a short channel inthelowcr Vside 'of the Abese to' a.

screw 1,6 which connects it Withe binding` post '17 arranged in adepression 18 in the top side of the base and adapted to connect with emain conductor wire 'adopted to be passed through a hole 19 extending`through the basein proximity .to the binding'post. The. otherconnect-ing strip 1 extends through e longer channel in the. lower sideof the base. to a screw 2() which connectsit with a yoke piece 21. Theyoke piece 21 is arranged in 'a depression inthe top side of the beseand consists of a. nietal punching with' firms 22 hentup from oppositeedges and'tipertured The bolt 2-3 is provided with :i round end 24 whichextends through the side oltubular contact 12 sindl roo in T againstinform 22 and a collar 26.fixed to the bolt.

"Vlie snep-switch 2T is arranged in a recess communicating with therecess lin-wliicli the yoke piece 21 is arranged, and nitty be of anyapproved construct-ion. The switch-blade. 28 has its ends bent upparallel tothe axis,

and the springlclip's 29 80 are dis osed on opposite sides in line withthe loe ing bolt 23 so that when the switch-blade is in closed Eostio'nit will engage the rear end of the olt and-"prevent its retraction'while .the

switch remains closed.

' The left-hand. clip 29 is secured between i i the surface of thebas'eand the under side of theyoke-pieoe 21, and the right-hand clip3()- V1o 'is secured between the stuffaee'of thev base and the bottom ofthe Second binding post 31 located at the right-hand end of the mainbase cavity and adapted to engage a main conductor Wire lead lthrough aVhole -32 in proximity thereto.

I do not desire to restrict myself to the particular form or arrangement'ofv parts herein described and shown, 'sinceit is a parent thatthey'n'iaybe changed and mo iled without departing trom my -invention.

.VVhatl claim ae new and desire to secure V by Letters Patent bf theUnited States, is,

1. The ooinbin i `:ion of an attaching plug, a receptacle there fr,means for locking said plug in ,engageinentV with said receptacle, and

a Switclrmounted on said receptacle and provided Witlra rota-iftY@onta-et ada ted 'to close the circuit and secure said oeking means..

'2. The eombinalt'ion of an attaching plug;

lthe end of said holt.

a receptacle therefor rovided withv terminal contacts, a looking Eoltwith one end arranged in proximityv to one of said terminal contacts,and a switch mounted on said reeeptacle and provided with a rotaryContact 35 adapted to -elose the circuit and engage the opposite end ofsaid bolt.'

' 3. The combination of an attaching plug L ,provided with independentcontacts, a receptacle therefor 'having stationary eon- 4o taots securedthereto, a spring pressed bolt arranged in line with one of thestationary o ontaots7V and a rotary switch' mounted in said receptacleand-adapted to abut against 4:. The combination of an attaching plughavingindependent contacts with enlarged ends,-a receptacle thereforhaving eu shaped stationary contacts; a spring presse bolt extending atone endthrough the side of a. 5o

stationary Contact, and a rotar)v switchI adapted'to engage the oppositeend of said bolt -and prevent retrograde movement thereof` In. Witnesswhereof,4 I have hereunto set 5 my hand tliis;- Z7tl Lday of October,1904. v .L 7 RANK-0.41313 REAMER.

Witnessesz l BENJAMIN B. HULL,

. .HELEN ORFORD.

